Image stabilizing binoculars are great- when on a stable surface. They are really only intended to eliminate the shakes that people normally have. The roll and chop motions of a boat are more than the electronics can handle. But I love my Canon binocs. They let me know exactly what sort of commotion is out there beyond the surf so I can launch the kayak or plan for the next day. Or check out the Parker that's out there when I should have been.